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One-Dimensional V2O5/TiO2 Heterostructures for Chemiresistive Ozone Sensors
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2019-07-26 , DOI: 10.1021/acsanm.9b00578
Waldir Avansi 1 , Ariadne C. Catto 1 , Lúis F. da Silva 1 , Tomas Fiorido 2 , Sandrine Bernardini 2 , Valmor R. Mastelaro 3 , Khalifa Aguir 2 , Raul Arenal 4, 5, 6
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2019-07-26 , DOI: 10.1021/acsanm.9b00578
Waldir Avansi 1 , Ariadne C. Catto 1 , Lúis F. da Silva 1 , Tomas Fiorido 2 , Sandrine Bernardini 2 , Valmor R. Mastelaro 3 , Khalifa Aguir 2 , Raul Arenal 4, 5, 6
Affiliation
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Over the last decades, there has been considerable interest in the synthesis of one-dimensional (1D) metal oxide nanostructures that can be used in gas sensor devices. Heterostructures, obtained by a combination of different semiconductor nanomaterials with different band energies, have been extensively studied in order to enhance their gas-sensing performance. In this context, our present study focuses on the investigation of chemiresistive-sensing capabilities of a combination of TiO2 nanoparticles and V2O5 nanowires obtained via hydrothermal treatment of the peroxo-metal complex. The formation of V2O5/TiO2 heterostructures was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) measurements. This study also proposes an efficient approach to produce 1D V2O5/TiO2 heterostructures with a good range of detection (0.09–1.25 ppm) and remarkable ozone-sensing properties related to repeatability and selectivity.
中文翻译:
用于化学臭氧传感器的一维V2O5 / TiO2异质结构
在过去的几十年中,人们对可用于气体传感器设备的一维(1D)金属氧化物纳米结构的合成产生了浓厚的兴趣。为了增强其气敏性能,已经广泛研究了由具有不同带能的不同半导体纳米材料的组合获得的异质结构。在这种情况下,我们目前的研究重点是通过水热处理过氧-金属配合物获得的TiO 2纳米颗粒和V 2 O 5纳米线的组合对化学传感能力的研究。V 2 O 5 / TiO 2的形成通过X射线衍射(XRD),透射电子显微镜(TEM)和X射线光电子能谱(XPS)测量来表征异质结构。这项研究还提出了一种生产1D V 2 O 5 / TiO 2异质结构的有效方法,该结构具有良好的检测范围(0.09–1.25 ppm),并且具有与重复性和选择性相关的显着的臭氧传感特性。
更新日期:2019-07-26
中文翻译:

用于化学臭氧传感器的一维V2O5 / TiO2异质结构
在过去的几十年中,人们对可用于气体传感器设备的一维(1D)金属氧化物纳米结构的合成产生了浓厚的兴趣。为了增强其气敏性能,已经广泛研究了由具有不同带能的不同半导体纳米材料的组合获得的异质结构。在这种情况下,我们目前的研究重点是通过水热处理过氧-金属配合物获得的TiO 2纳米颗粒和V 2 O 5纳米线的组合对化学传感能力的研究。V 2 O 5 / TiO 2的形成通过X射线衍射(XRD),透射电子显微镜(TEM)和X射线光电子能谱(XPS)测量来表征异质结构。这项研究还提出了一种生产1D V 2 O 5 / TiO 2异质结构的有效方法,该结构具有良好的检测范围(0.09–1.25 ppm),并且具有与重复性和选择性相关的显着的臭氧传感特性。